QFN Mold Engineer — Process Optimization & Yield

ON Semiconductor Malaysia Sdn. Bhd.; Seremban; On-site; MYR 100,000 - 145,000; Full time

Job summary

onsemi Malaysia is seeking a QFN Mold Engineer to own and sustain QFN molding processes, driving stability, high yield, and consistent product quality across manufacturing. You will lead troubleshooting, apply DOE and statistical analysis, implement CAPA actions, and support NPI, package qualification, and material evaluations with cross-functional teams.

You will mentor technicians and operators, participate in audits, and ensure compliance with safety and manufacturing standards while

Qualifications

• Experience with QFN molding processes and qualification.
• Strong problem-solving and data analysis skills.
• Ability to lead continuous improvement initiatives.

Responsibilities

• Own and sustain QFN molding processes to ensure stable production, high yield, and product quality.
• Monitor and improve molding KPIs including yield, scrap rate, machine utilization, and cycle time.
• Perform troubleshooting and root cause analysis for molding-related issues such as warpage, delamination, voids, package crack, mold flash, incomplete fill, and wire sweep.
• Lead process optimization activities through DOE, statistical analysis, and continuous improvement methodologies.
• Develop and maintain process specifications, OCAP, control plans, and engineering documentation.
• Support new product introduction (NPI), package qualification, and material evaluations.
• Drive yield improvement and cost reduction projects to enhance manufacturing performance.
• Collaborate with Production, Quality, Equipment, and Maintenance teams to resolve process and equipment issues.
• Review and qualify molding materials, tooling, and process changes.
• Analyze process data and implement corrective and preventive actions (CAPA) to improve reliability and quality.
• Provide technical coaching and guidance to technicians and operators.
• Support customer audits, internal audits, and quality improvement initiatives.
• Ensure compliance with safety, quality, and manufacturing standards.

Skills

Process troubleshooting

DOE

Statistical analysis

CAPA

Mentoring

Education

Engineering degree (Mechanical / Electrical / Mechatronics / Materials)

Tools

DOE software

Root cause analysis

Job description

onsemi Malaysia is seeking a QFN Mold Engineer to own and sustain QFN molding processes, driving stability, high yield, and consistent product quality across manufacturing. You will lead troubleshooting, apply DOE and statistical analysis, implement CAPA actions, and support NPI, package qualification, and material evaluations with cross-functional teams.

You will mentor technicians and operators, participate in audits, and ensure compliance with safety and manufacturing standards while